4.100 MLS Head Gasket .080 GM LS

The Cometic Gaskets 4.100 MLS Head Gasket .080 is designed for LS engine builders and mechanics seeking reliable sealing in high-performance applications. This multi-layer steel gasket is suitable for street, strip, and forced-induction LS builds where cylinder pressure and boost levels exceed factory gasket limits.

With a compression thickness of 0.080 inches, this gasket is engineered to control chamber volume and maintain proper quench when paired with LS heads at a 4.100 bore specification. The MLS construction features embossed steel layers with elastomer facing, providing superior sealing across multiple combustion cycles. Many builders choose to apply a thin bead of gasket sealer for added assurance.

This head gasket is compatible with LS1, LS2, LS3, and LSx-platform engines with a 4.100 bore diameter, making it a valuable choice for those upgrading heads or rebuilding engines after boost-related failures. Proper surface preparation is essential for optimal performance.